| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.65 | USD | 20251120 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.65 | USD | 20251120 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.76 | USD | 20251119 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.76 | USD | 20251119 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.81 | USD | 20251118 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.81 | USD | 20251118 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.94 | USD | 20251117 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.94 | USD | 20251117 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.91 | USD | 20251114 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.91 | USD | 20251114 |